InChI=1S/C24H30O8S/c1-16-4-10-22(32-33(27,28)29)24(2,3)20(16)9-5-17(15-25)12-13-30-19-8-6-18-7-11-23(26)31-21(18)14-19/h6-8,11-12,14,22,25H,4-5,9-10,13,15H2,1-3H3,(H,27,28,29)/b17-12+